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Re: [Qemu-devel] [PATCH] Enabled building of x86_64 code on Mac OS X
From: |
Jamie Lokier |
Subject: |
Re: [Qemu-devel] [PATCH] Enabled building of x86_64 code on Mac OS X |
Date: |
Tue, 27 Jan 2009 14:37:37 +0000 |
User-agent: |
Mutt/1.5.13 (2006-08-11) |
Alexander Graf wrote:
> As for the plus in code size on x86_64 - that doesn't really apply to
> tcg, as that still generates 32-bit code when only 32-bit code is
> necessary, which still looks the same on x86_64. Plus it does simplify
> 64-bit operations.
TCG doesn't use the available x86_64 registers when generating code
for 32-bit operations on an x86_64 host?
> I would be very surprised if the improvement of emulating x86_64 on x86
> vs. x86_64 is only ~10%.
So would I.
By the way, with KVM, can QEMU (the I/O model) be a 32-bit app while
the KVM kernel module provides an x86_64 CPU?
That might be useful, if there are advantages to QEMU itself being
32-bit on MacOS X and if there's a KVM module for it.
-- Jamie
- [Qemu-devel] [PATCH] Enabled building of x86_64 code on Mac OS X, Alexander Graf, 2009/01/24
- Re: [Qemu-devel] [PATCH] Enabled building of x86_64 code on Mac OS X, Anthony Liguori, 2009/01/26
- Re: [Qemu-devel] [PATCH] Enabled building of x86_64 code on Mac OS X, Paul Brook, 2009/01/26
- Re: [Qemu-devel] [PATCH] Enabled building of x86_64 code on Mac OS X, Jamie Lokier, 2009/01/26
- Re: [Qemu-devel] [PATCH] Enabled building of x86_64 code on Mac OS X, Paul Brook, 2009/01/26
- Re: [Qemu-devel] [PATCH] Enabled building of x86_64 code on Mac OS X, Anthony Liguori, 2009/01/26
- Re: [Qemu-devel] [PATCH] Enabled building of x86_64 code on Mac OS X, Alexander Graf, 2009/01/27
- Re: [Qemu-devel] [PATCH] Enabled building of x86_64 code on Mac OS X,
Jamie Lokier <=
- Re: [Qemu-devel] [PATCH] Enabled building of x86_64 code on Mac OS X, Laurent Desnogues, 2009/01/27
Re: [Qemu-devel] [PATCH] Enabled building of x86_64 code on Mac OS X, C . W . Betts, 2009/01/26